It is an insane amount, I think I'm looking at off-grid ish.....

Once you've killed rent and mortgage the amount drops by a third.

Vehicle is the second most expensive thing, which i think one needs more living off grid, so that's always gonna be there.

Then in terms of energy and water - the costs of being gridded aren't too bad given the convenience!

Same goes for food. It's relatively cheap to buy compared to the time involved of growing your own.

Of course aesthetically providing yer own energy and food really is much more appealing!

Main problem with going off grid in the UK is just the sheer cost of land... One isn't going to get change out of £100K for say 5 acres of woodland which is really the minimum you need for some basic privacy, and then you'd probably need a 4 wheel drive which are astronomically expensive! You'd want to spend £!5K on a second hand one minimum I think to make sure it'll last you a decade and isn't a total lemon.

Off-grid ish in suburbia with a medium sized garden is probably cheaper overall! And there's more people about, which ATM I kind of like!